CN108632381B - Block chain-based environment supervision method and system - Google Patents

Block chain-based environment supervision method and system Download PDF

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CN108632381B
CN108632381B CN201810456223.7A CN201810456223A CN108632381B CN 108632381 B CN108632381 B CN 108632381B CN 201810456223 A CN201810456223 A CN 201810456223A CN 108632381 B CN108632381 B CN 108632381B
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data
environmental data
intelligent contract
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CN108632381A (en
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孙善宝
于治楼
马辰
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Inspur Group Co Ltd
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Inspur Group Co Ltd
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00—Network arrangements or protocols for supporting network services or applications
    • H04L67/01—Protocols
    • H04L67/12—Protocols specially adapted for proprietary or special-purpose networking environments, e.g. medical networks, sensor networks, networks in vehicles or remote metering networks
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L63/00—Network architectures or network communication protocols for network security
    • H04L63/12—Applying verification of the received information
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
    • H04L9/32—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols including means for verifying the identity or authority of a user of the system or for message authentication, e.g. authorization, entity authentication, data integrity or data verification, non-repudiation, key authentication or verification of credentials
    • H04L9/3236—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols including means for verifying the identity or authority of a user of the system or for message authentication, e.g. authorization, entity authentication, data integrity or data verification, non-repudiation, key authentication or verification of credentials using cryptographic hash functions
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
    • H04L9/32—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols including means for verifying the identity or authority of a user of the system or for message authentication, e.g. authorization, entity authentication, data integrity or data verification, non-repudiation, key authentication or verification of credentials
    • H04L9/3247—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols including means for verifying the identity or authority of a user of the system or for message authentication, e.g. authorization, entity authentication, data integrity or data verification, non-repudiation, key authentication or verification of credentials involving digital signatures
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L63/00—Network architectures or network communication protocols for network security
    • H04L63/12—Applying verification of the received information
    • H04L63/123—Applying verification of the received information received data contents, e.g. message integrity
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L63/00—Network architectures or network communication protocols for network security
    • H04L63/12—Applying verification of the received information
    • H04L63/126—Applying verification of the received information the source of the received data

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Abstract

The invention provides an environment supervision method and system based on a block chain, wherein the method comprises the following steps: forming a block chain network by a plurality of nodes, wherein the plurality of nodes comprise: collecting nodes and monitoring nodes; each acquisition node acquires environmental data and stores the environmental data locally; issuing the hash value of the environmental data acquired by each acquisition node to a block chain of a block chain network, determining whether the environmental data of each acquisition node needs to be alarmed, and if so, sending alarm information to a supervision node; and the supervision node receiving the alarm information acquires at least one piece of target environment data from at least one acquisition node storing at least one piece of target environment data needing to be alarmed according to the alarm information, acquires the hash value of each piece of target environment data from the block chain of the block chain network, and verifies whether each piece of target environment data is legal or not by using the hash value of each piece of target environment data. The invention can collect the required environmental data more conveniently.

Description

Block chain-based environment supervision method and system
Technical Field
The invention relates to the technical field of environmental supervision, in particular to an environmental supervision method and system based on a block chain.
Background
With the advance of industrialization and urbanization construction, environmental problems such as enterprise sewage discharge, site dust, noise, air pollution and the like gradually become the focus of people's attention, and the quality of environmental quality directly threatens the health and the quality of life of residents, so the environment needs to be strictly supervised.
In the prior art, when an environmental problem occurs, a inspection institution is required to collect evidence of the environmental problem. Because the environmental data are not directly collected by the inspection institution, it is difficult to collect the required environmental data.
Disclosure of Invention
The embodiment of the invention provides an environment supervision method and system based on a block chain, which can collect required environment data more conveniently.
In one aspect, an embodiment of the present invention provides an environment monitoring method based on a block chain, including:
s1: forming a block chain network by a plurality of nodes, wherein the plurality of nodes comprise: at least one collection node and at least one supervision node;
s2: each acquisition node acquires environmental data and locally stores the environmental data;
s3: issuing the hash value of the environmental data acquired by each acquisition node to a block chain of the block chain network, determining whether the environmental data of each acquisition node needs to be alarmed, and if so, sending alarm information to the supervision node;
s4: the supervision node receiving the alarm information acquires at least one piece of target environment data from at least one acquisition node storing at least one piece of target environment data needing alarming according to the alarm information, acquires a hash value of each piece of target environment data from a block chain of the block chain network, and verifies whether each piece of target environment data is legal or not by using the hash value of each piece of target environment data.
Further, the air conditioner is provided with a fan,
the method further comprises the following steps: determining an endorsement node and an accounting node of the block chain network from the plurality of nodes;
the S3, including:
for each of the collection nodes, performing:
adding a time mark and a position mark for the current acquired environmental data by the current acquisition node, determining a hash value of the current environmental data, and generating an environmental data intelligent contract; the current acquisition node associates the current share of environmental data of the current acquisition node with the environmental data of other nodes according to the time marks and the position marks of the environmental data acquired by other acquisition nodes and the time marks and the position marks of the current share of environmental data to generate an environmental data association intelligent contract; the current acquisition node generates a monitoring alarm intelligent contract; the current acquisition node issues the intelligent contract of the environmental data, the intelligent contract of the environmental data association and the intelligent contract of the monitoring alarm to the block chain network;
for each endorsement node, performing:
the current endorsement node executes the environment data intelligent contract, calculates the hash value of the current endorsement environment data of the current acquisition node, corresponds the node identification of the current acquisition node with the hash value of the current endorsement environment data of the current acquisition node, determines whether the execution of the environment data intelligent contract is effective or not according to an endorsement strategy, and sends the execution result of the environment data intelligent contract to the accounting node if the execution result is effective;
the current endorsement node executes the environment data association intelligent contract, when the current endorsement node determines that the current environmental data of the current acquisition node needs to be alarmed according to the monitoring alarm intelligent contract, the hash value of the current environmental data of the current acquisition node is associated with the hash values of the environmental data of other acquisition nodes according to the time mark and the position mark of the environmental data of each acquisition node in the block chain, the current endorsement node determines whether the execution of the environment data association intelligent contract is effective or not according to an endorsement strategy, and if so, the execution result of the environment data association intelligent contract is sent to the accounting node;
the current endorsement node executes the monitoring alarm intelligent contract, and when the current environmental data of the current collection node is determined to need to be alarmed, the alarm information is sent to the supervision node;
when the accounting node receives an execution result sent by the current endorsement node, after the execution result is agreed, generating a new block, and storing the execution result into the new block;
the plurality of nodes update local account book records according to the new blocks;
wherein the execution result comprises: the execution result of the environment data intelligent contract and the execution result of the environment data related intelligent contract; the execution result of the environment data intelligent contract comprises: the hash value of the current environmental data of the current collection node and the corresponding node identification of the current collection node; the environment data association intelligent contract execution result comprises: and the hash value of the current environmental data of the current collection node and the hash values of the environmental data of other associated collection nodes.
Further, the air conditioner is provided with a fan,
the S4, including:
the supervision node receiving the alarm information acquires the hash value of the current piece of environmental data from the block chain of the block chain network according to the alarm information, the node identification corresponding to the hash value of the current piece of environmental data, the hash values of the environmental data of other acquisition nodes associated with the hash value of the current piece of environmental data, and the node identifications corresponding to the hash values of the environmental data of other acquisition nodes associated with the hash value of the current piece of environmental data;
the supervision node receiving the alarm information acquires environmental data corresponding to the hash value from the acquisition node corresponding to the node identification according to the acquired node identification and the hash value, and takes at least one acquired environmental data as at least one target environmental data;
for each piece of the target environment data, performing: and the supervision node receiving the alarm information calculates the hash value of the current target environment data, judges whether the calculated hash value of the current target environment data is the same as the hash value of the current target environment data stored in the block chain of the block chain network, if so, determines that the current target environment data is legal, otherwise, determines that the current target environment data is illegal.
Further, the air conditioner is provided with a fan,
before the current collection node adds a time stamp and a position stamp to the collected current environmental data and determines the hash value of the current environmental data, the method further includes:
for each of the collection nodes, performing:
the current acquisition node generates a data cataloging intelligent contract;
the current acquisition node standardizes the current share environment data according to the data cataloging intelligent contract;
further comprising:
for each of the collection nodes, performing:
the current acquisition node issues the data cataloging intelligent contract to the block chain network;
further comprising:
for each endorsement node, performing:
the current endorsement node executes the intelligent contract of the data catalogs to generate an environmental data catalogs of the current acquisition node, the current endorsement node determines whether the execution of the intelligent contract of the data catalogs is effective according to an endorsement strategy, and if so, the execution result of the intelligent contract of the data catalogs is sent to the accounting node;
the associating the hash value of the current environmental data of the current collection node with the hash values of the environmental data of other collection nodes according to the time mark and the position mark of the environmental data of each collection node in the block chain comprises:
the current endorsement node acquires the environment data catalogues of other acquisition nodes from the block chain of the block chain network, and associates the hash value of the current environmental data of the current acquisition node with the hash values of the environment data of other acquisition nodes according to the acquired environment data catalogues of other acquisition nodes and the time mark and the position mark of the environment data of each acquisition node;
wherein the execution result further comprises: the execution result of the data cataloging intelligent contract; the execution result of the data cataloging intelligent contract comprises: and cataloging the environmental data of the current collection node.
Further, the air conditioner is provided with a fan,
the method further comprises the following steps:
the third-party digital certificate authentication center issues a digital certificate for each node;
and when each node transmits data, performing digital signature by using a digital certificate issued by the third-party digital certificate authentication center, and transmitting the data subjected to digital signature.
Further, the air conditioner is provided with a fan,
the method further comprises the following steps:
determining an admission node of the blockchain network from the plurality of nodes;
when a new node that is not in the blockchain network requests to join the blockchain network, the admission node determines whether to allow the new node to join the blockchain network.
In another aspect, an embodiment of the present invention provides an environmental monitoring system based on a block chain, including:
a plurality of nodes;
the plurality of nodes form a block chain network, and the plurality of nodes comprise: at least one collection node and at least one supervision node;
each acquisition node is used for acquiring environmental data and locally storing the environmental data;
the plurality of nodes are used for issuing the hash value of the environment data acquired by each acquisition node to a block chain of the block chain network, determining whether the environment data of each acquisition node needs to be alarmed, and if so, sending alarm information to the supervision node;
the monitoring node is used for acquiring at least one piece of target environment data from at least one acquisition node storing at least one piece of target environment data needing alarming according to the alarming information when the alarming information is received, acquiring a hash value of each piece of target environment data from a block chain of the block chain network, and verifying whether each piece of target environment data is legal or not by using the hash value of each piece of target environment data.
Further, the air conditioner is provided with a fan,
the plurality of nodes are further used for determining an endorsement node and an accounting node of the block chain network from the plurality of nodes;
the plurality of nodes are configured to, for each of the collection nodes, perform:
adding a time mark and a position mark for the current acquired environmental data by the current acquisition node, determining a hash value of the current environmental data, and generating an environmental data intelligent contract; the current acquisition node associates the current share of environmental data of the current acquisition node with the environmental data of other nodes according to the time marks and the position marks of the environmental data acquired by other acquisition nodes and the time marks and the position marks of the current share of environmental data to generate an environmental data association intelligent contract; the current acquisition node generates a monitoring alarm intelligent contract; the current acquisition node issues the intelligent contract of the environmental data, the intelligent contract of the environmental data association and the intelligent contract of the monitoring alarm to the block chain network;
for each endorsement node, performing:
the current endorsement node executes the environment data intelligent contract, calculates the hash value of the current endorsement environment data of the current acquisition node, corresponds the node identification of the current acquisition node with the hash value of the current endorsement environment data of the current acquisition node, determines whether the execution of the environment data intelligent contract is effective or not according to an endorsement strategy, and sends the execution result of the environment data intelligent contract to the accounting node if the execution result is effective;
the current endorsement node executes the environment data association intelligent contract, when the current endorsement node determines that the current environmental data of the current acquisition node needs to be alarmed according to the monitoring alarm intelligent contract, the hash value of the current environmental data of the current acquisition node is associated with the hash values of the environmental data of other acquisition nodes according to the time mark and the position mark of the environmental data of each acquisition node in the block chain, the current endorsement node determines whether the execution of the environment data association intelligent contract is effective or not according to an endorsement strategy, and if so, the execution result of the environment data association intelligent contract is sent to the accounting node;
the current endorsement node executes the monitoring alarm intelligent contract, and when the current environmental data of the current collection node is determined to need to be alarmed, the alarm information is sent to the supervision node;
when the accounting node receives an execution result sent by the current endorsement node, after the execution result is agreed, generating a new block, and storing the execution result into the new block;
the plurality of nodes update local account book records according to the new blocks;
wherein the execution result comprises: the execution result of the environment data intelligent contract and the execution result of the environment data related intelligent contract; the execution result of the environment data intelligent contract comprises: the hash value of the current environmental data of the current collection node and the corresponding node identification of the current collection node; the environment data association intelligent contract execution result comprises: and the hash value of the current environmental data of the current collection node and the hash values of the environmental data of other associated collection nodes.
Further, the air conditioner is provided with a fan,
the supervision node is used for executing the following steps when the alarm information is received:
according to the alarm information, obtaining the hash value of the current environmental data from the block chain of the block chain network, the node identification corresponding to the hash value of the current environmental data, the hash values of the environmental data of other acquisition nodes related to the hash value of the current environmental data, and the node identification corresponding to the hash values of the environmental data of other acquisition nodes related to the hash value of the current environmental data;
according to the acquired node identification and the hash value, acquiring environmental data corresponding to the hash value from an acquisition node corresponding to the node identification, and taking at least one acquired environmental data as at least one target environmental data;
for each piece of the target environment data, performing: calculating the hash value of the current target environment data, judging whether the calculated hash value of the current target environment data is the same as the hash value of the current target environment data stored in a block chain of the block chain network, if so, determining that the current target environment data is legal, otherwise, determining that the current target environment data is illegal.
Further, the air conditioner is provided with a fan,
the multiple nodes are further configured to execute, before the current collection node adds a time stamp and a position stamp to the collected current environmental data and determines a hash value of the current environmental data:
for each of the collection nodes, performing:
the current acquisition node generates a data cataloging intelligent contract;
the current acquisition node standardizes the current share environment data according to the data cataloging intelligent contract;
the plurality of nodes is further configured to, for each of the collection nodes, perform:
the current acquisition node issues the data cataloging intelligent contract to the block chain network;
the plurality of nodes is further configured to, for each endorsement node, perform:
the current endorsement node executes the intelligent contract of the data catalogs to generate an environmental data catalogs of the current acquisition node, the current endorsement node determines whether the execution of the intelligent contract of the data catalogs is effective according to an endorsement strategy, and if so, the execution result of the intelligent contract of the data catalogs is sent to the accounting node;
the plurality of nodes, when executing the time stamp and the position stamp according to the environment data of each collection node in the block chain, and associating the hash value of the current environment data of the current collection node with the hash values of the environment data of other collection nodes, are specifically configured to:
the current endorsement node acquires the environment data catalogues of other acquisition nodes from the block chain of the block chain network, and associates the hash value of the current environmental data of the current acquisition node with the hash values of the environment data of other acquisition nodes according to the acquired environment data catalogues of other acquisition nodes and the time mark and the position mark of the environment data of each acquisition node;
wherein the execution result further comprises: the execution result of the data cataloging intelligent contract; the execution result of the data cataloging intelligent contract comprises: and cataloging the environmental data of the current collection node.
Further, the air conditioner is provided with a fan,
the system further comprises: a third party digital certificate authentication center;
the third-party digital certificate authentication center is used for issuing a digital certificate for each node;
each node is used for carrying out digital signature by using a digital certificate issued by the third-party digital certificate authentication center during data transmission and transmitting the data subjected to digital signature.
Further, the air conditioner is provided with a fan,
the plurality of nodes are further used for determining an admission node of the block chain network from the plurality of nodes; when a new node that is not in the blockchain network requests to join the blockchain network, the admission node determines whether to allow the new node to join the blockchain network.
In the embodiment of the invention, at least one acquisition node and at least one supervision node are constructed into a block chain network, the acquisition node acquires environmental data, when environmental problems are found according to the acquired environmental data and alarm is needed, alarm information is sent to the supervision node, the supervision node can directly acquire the needed environmental data from each node storing the environmental data needing alarm according to the alarm information, and the needed environmental data can be collected more conveniently.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a flowchart of an environmental monitoring method based on a block chain according to an embodiment of the present invention;
fig. 2 is a flowchart of another block chain-based environment monitoring method according to an embodiment of the present invention;
fig. 3 is a schematic diagram of an environmental surveillance system based on a block chain according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer and more complete, the technical solutions in the embodiments of the present invention will be described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention, and based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the scope of the present invention.
As shown in fig. 1, an embodiment of the present invention provides a block chain-based environment monitoring method, which may include the following steps:
s1: forming a block chain network by a plurality of nodes, wherein the plurality of nodes comprise: at least one collection node and at least one supervision node;
s2: each acquisition node acquires environmental data and locally stores the environmental data;
s3: issuing the hash value of the environmental data acquired by each acquisition node to a block chain of the block chain network, determining whether the environmental data of each acquisition node needs to be alarmed, and if so, sending alarm information to the supervision node;
s4: the supervision node receiving the alarm information acquires at least one piece of target environment data from at least one acquisition node storing at least one piece of target environment data needing alarming according to the alarm information, acquires a hash value of each piece of target environment data from a block chain of the block chain network, and verifies whether each piece of target environment data is legal or not by using the hash value of each piece of target environment data.
In the embodiment of the invention, at least one acquisition node and at least one supervision node are constructed into a block chain network, the acquisition node acquires environmental data, when environmental problems are found according to the acquired environmental data and alarm is needed, alarm information is sent to the supervision node, the supervision node can directly acquire the needed environmental data from each node storing the environmental data needing alarm according to the alarm information, and the needed environmental data can be collected more conveniently.
In addition, the legality of the environment data can be verified through the hash value of each environment data.
In an embodiment of the invention, the method further comprises: determining an endorsement node and an accounting node of the block chain network from the plurality of nodes;
the S3, including:
for each of the collection nodes, performing:
adding a time mark and a position mark for the current acquired environmental data by the current acquisition node, determining a hash value of the current environmental data, and generating an environmental data intelligent contract; the current acquisition node associates the current share of environmental data of the current acquisition node with the environmental data of other nodes according to the time marks and the position marks of the environmental data acquired by other acquisition nodes and the time marks and the position marks of the current share of environmental data to generate an environmental data association intelligent contract; the current acquisition node generates a monitoring alarm intelligent contract; the current acquisition node issues the intelligent contract of the environmental data, the intelligent contract of the environmental data association and the intelligent contract of the monitoring alarm to the block chain network;
for each endorsement node, performing:
the current endorsement node executes the environment data intelligent contract, calculates the hash value of the current endorsement environment data of the current acquisition node, corresponds the node identification of the current acquisition node with the hash value of the current endorsement environment data of the current acquisition node, determines whether the execution of the environment data intelligent contract is effective or not according to an endorsement strategy, and sends the execution result of the environment data intelligent contract to the accounting node if the execution result is effective;
the current endorsement node executes the environment data association intelligent contract, when the current endorsement node determines that the current environmental data of the current acquisition node needs to be alarmed according to the monitoring alarm intelligent contract, the hash value of the current environmental data of the current acquisition node is associated with the hash values of the environmental data of other acquisition nodes according to the time mark and the position mark of the environmental data of each acquisition node in the block chain, the current endorsement node determines whether the execution of the environment data association intelligent contract is effective or not according to an endorsement strategy, and if so, the execution result of the environment data association intelligent contract is sent to the accounting node;
the current endorsement node executes the monitoring alarm intelligent contract, and when the current environmental data of the current collection node is determined to need to be alarmed, the alarm information is sent to the supervision node;
when the accounting node receives an execution result sent by the current endorsement node, after the execution result is agreed, generating a new block, and storing the execution result into the new block;
the plurality of nodes update local account book records according to the new blocks;
wherein the execution result comprises: the execution result of the environment data intelligent contract and the execution result of the environment data related intelligent contract; the execution result of the environment data intelligent contract comprises: the hash value of the current environmental data of the current collection node and the corresponding node identification of the current collection node; the environment data association intelligent contract execution result comprises: and the hash value of the current environmental data of the current collection node and the hash values of the environmental data of other associated collection nodes.
In the embodiment of the invention, the endorsement node and the accounting node can be selected by a plurality of nodes through a preset consensus strategy. When the collection node collects the environment data, a time mark and a position mark can be added on the environment data, and the time and the position of the environment data are identified through the time mark and the position mark. The collection node issues the generated intelligent contracts of the environmental data, the intelligent contracts of the environmental data association and the intelligent contracts of the monitoring alarm into the block chain network so that endorsement nodes in the block chain network can execute the intelligent contracts.
Execution of the intelligent contract is implemented by an endorsement node in the blockchain network.
When the endorsement node executes the environment data intelligent contract, the hash value of the environment data is determined, and the hash value corresponds to the node identification of the corresponding acquisition node, so that the source of the hash value of each environment data can be determined.
When the endorsement node executes the environment data association intelligent contract, only the environment data needing alarming is associated. In management, the environment data in which the time stamp and the position stamp are the same may be associated.
The endorsement node can determine the environmental data that need report to the police when carrying out monitoring warning intelligence contract to send alarm information, this alarm information can include: and the hash value of the environmental data needing alarming, the corresponding node identification and other information.
In addition, different supervisory nodes may be responsible for different areas. The endorsement node can determine a supervision node corresponding to the current environmental data, and send alarm information to the supervision node corresponding to the current environmental data. Specifically, the corresponding supervision node is determined according to the position mark corresponding to the current environmental data.
In the embodiment of the present invention, after the plurality of nodes update the local ledger record according to the new block, each node may obtain the execution result of each intelligent contract from the local ledger record.
In the embodiment of the invention, if the endorsement node determines that the execution of the intelligent contract is invalid according to the endorsement policy after executing the intelligent contract, the endorsement node sends an error report to the corresponding node, and the execution result of the intelligent contract cannot be stored in the block chain.
In the embodiment of the invention, the hash value of the environment data is stored in the block chain of the block chain network instead of the environment data, so that the safety of the environment data can be ensured, and the privacy of the environment data of each acquisition node is ensured.
In an embodiment of the present invention, the S4 includes:
the supervision node receiving the alarm information acquires the hash value of the current piece of environmental data from the block chain of the block chain network according to the alarm information, the node identification corresponding to the hash value of the current piece of environmental data, the hash values of the environmental data of other acquisition nodes associated with the hash value of the current piece of environmental data, and the node identifications corresponding to the hash values of the environmental data of other acquisition nodes associated with the hash value of the current piece of environmental data;
the supervision node receiving the alarm information acquires environmental data corresponding to the hash value from the acquisition node corresponding to the node identification according to the acquired node identification and the hash value, and takes at least one acquired environmental data as at least one target environmental data;
for each piece of the target environment data, performing: and the supervision node receiving the alarm information calculates the hash value of the current target environment data, judges whether the calculated hash value of the current target environment data is the same as the hash value of the current target environment data stored in the block chain of the block chain network, if so, determines that the current target environment data is legal, otherwise, determines that the current target environment data is illegal.
In the embodiment of the invention, after the monitoring node determines the node identifier corresponding to the hash value of the required environment data, the collecting node for storing the required environment data can be found, and the specific environment data can be found by combining the hash value of the required environment data.
For example, for environment data a, environment data a is the environment data needed by the supervising node. The supervision node acquires the hash value of the environment data A and the corresponding node identification A from the block chain, determines the collection node A through the node identification A, and sends the hash value of the environment data A to the collection node A, so that the collection node A can determine the environment data A according to the hash value of the environment data A and returns the environment data A to the supervision node.
In an embodiment of the present invention, before the current collection node adds a time stamp and a location stamp to the collected current environmental data, and determines a hash value of the current environmental data, the method further includes:
for each of the collection nodes, performing:
the current acquisition node generates a data cataloging intelligent contract;
the current acquisition node standardizes the current share environment data according to the data cataloging intelligent contract;
further comprising:
for each of the collection nodes, performing:
the current acquisition node issues the data cataloging intelligent contract to the block chain network;
further comprising:
for each endorsement node, performing:
the current endorsement node executes the intelligent contract of the data catalogs to generate an environmental data catalogs of the current acquisition node, the current endorsement node determines whether the execution of the intelligent contract of the data catalogs is effective according to an endorsement strategy, and if so, the execution result of the intelligent contract of the data catalogs is sent to the accounting node;
the associating the hash value of the current environmental data of the current collection node with the hash values of the environmental data of other collection nodes according to the time mark and the position mark of the environmental data of each collection node in the block chain comprises:
the current endorsement node acquires the environment data catalogues of other acquisition nodes from the block chain of the block chain network, and associates the hash value of the current environmental data of the current acquisition node with the hash values of the environment data of other acquisition nodes according to the acquired environment data catalogues of other acquisition nodes and the time mark and the position mark of the environment data of each acquisition node;
wherein the execution result further comprises: the execution result of the data cataloging intelligent contract; the execution result of the data cataloging intelligent contract comprises: and cataloging the environmental data of the current collection node.
In the embodiment of the present invention, the acquisition node generates a data inventory intelligent contract, and the data inventory intelligent contract may include: the type and format of the environment data.
The environment data is standardized through the data catalogs corresponding to the data cataloging intelligent contracts, so that unnecessary information in the environment data can be removed, and the environment data is more refined and accurate.
In an embodiment of the invention, the method further comprises:
the third-party digital certificate authentication center issues a digital certificate for each node;
and when each node transmits data, performing digital signature by using a digital certificate issued by the third-party digital certificate authentication center, and transmitting the data subjected to digital signature.
In the embodiment of the invention, each node carries out digital signature on the data to be transmitted through the digital certificate of the node each time the node transmits the data, thereby ensuring the safety of the transmitted data.
In an embodiment of the invention, the method further comprises:
determining an admission node of the blockchain network from the plurality of nodes;
when a new node that is not in the blockchain network requests to join the blockchain network, the admission node determines whether to allow the new node to join the blockchain network.
In the embodiment of the invention, when a third-party digital certificate authentication center exists and an admission node allows a new node to join the block chain network, the third-party digital certificate authentication center can be used for carrying out identity confirmation on the new node and issuing a digital certificate to the new node.
As shown in fig. 2, an embodiment of the present invention provides a block chain-based environment monitoring method, which may include the following steps:
step 201: forming a block chain network by a plurality of nodes, and issuing a digital certificate for each node by a third-party digital certificate authentication center, wherein the plurality of nodes comprise: at least one collection node and at least one supervision node.
Specifically, the collection node may include: environmental protection department, water conservancy department, public security department, etc. The supervisory node may comprise: inspection agencies, etc.
The collection nodes can collect the environmental data through respective sensor networks, such as: a bayonet camera of a public security department, environment detection equipment of an environmental protection department, audio image acquisition equipment of a law enforcement department and the like.
The blockchain network may be a P2P consensus network.
Step 202: an endorsement node and an accounting node of the blockchain network are determined from the plurality of nodes.
Specifically, the plurality of nodes can select the admission node, the endorsement node and the accounting node through the consensus strategy of the block chain.
Step 203: and the acquisition node generates a data cataloging intelligent contract.
Specifically, the collection node issues a data cataloging intelligent contract into the block chain, and the data cataloging intelligent contract contains information such as the type and format of the environment data of the collection node.
Step 204: the collection node collects the environmental data and stores the environmental data locally.
Step 205: and the acquisition node standardizes the environmental data according to the data cataloging intelligent contract.
Step 206: the method comprises the steps that a collecting node adds a time mark and a position mark to collected environment data, the hash value of the environment data is determined, an environment data intelligent contract is generated, the environment data of the node is related with the environment data of other nodes according to the time mark and the position mark of the environment data collected by other collecting nodes and the time mark and the position mark of the environment data of the node, an environment data related intelligent contract is generated, a monitoring alarm intelligent contract is generated, and a data cataloging intelligent contract, the environment data related intelligent contract and the monitoring alarm intelligent contract are issued to a block chain network.
Specifically, the collection node issues an environmental data intelligence contract into the blockchain. When the association is performed, the environment data of each node having the same time stamp and position stamp is associated.
Specifically, the collection node issues an environment data association intelligent contract to the block chain according to the relevant environment data catalog of other collection nodes, in combination with local environment data and based on the time mark and the position mark.
Specifically, the collection node issues the monitoring alarm intelligent contract into the block chain.
Specifically, the acquisition node issues a data cataloging intelligent contract, an environment data association intelligent contract and a monitoring alarm intelligent contract to a block chain network and waits for the response of the endorsement node.
Step 207: and the endorsement node executes the data cataloging intelligent contract to generate an environment data cataloging of the acquisition node, the endorsement node determines whether the execution of the data cataloging intelligent contract is effective or not according to the endorsement strategy, if so, the execution result of the data cataloging intelligent contract is digitally signed by using the digital certificate, and the digitally signed result is transmitted to the accounting node to execute 214.
Specifically, the endorsement node starts executing each intelligent contract after acquiring each intelligent contract.
Specifically, the endorsement node executes a data cataloging intelligent contract to realize local environment data cataloging of the department where the endorsement node is located, and the local environment data cataloging is digitally signed by the endorsement node to ensure the legality of metadata of the environment data.
Step 208: and (3) executing the intelligent contract of the environmental data by the endorsement node, calculating a hash value of the environmental data of the acquisition node, corresponding the node identification of the acquisition node to the hash value of the environmental data of the acquisition node, determining whether the execution of the intelligent contract of the environmental data is effective by the endorsement node according to the endorsement strategy, if so, digitally signing the execution result of the intelligent contract of the environmental data by using a digital certificate, sending the digitally signed result to the accounting node, and executing 214.
Specifically, the endorsement node executes the environment data intelligent contract, reads out environment data which is stored locally and standardized according to environment data cataloging, calculates a hash value, corresponds the node identification and the hash value of the environment data, and carries out digital signature by the hash value.
Step 209: and the endorsement node executes the environment data association intelligent contract, when the environment data of the acquisition node needs to be alarmed according to the monitoring alarm intelligent contract, associates the hash value of the environment data of the acquisition node with the hash value of the environment data of other acquisition nodes according to the time mark and the position mark of the environment data of each acquisition node in the block chain, determines whether the execution of the environment data association intelligent contract is effective or not according to the endorsement strategy, if so, digitally signs the execution result of the environment data association intelligent contract by using a digital certificate, sends the result to the accounting node after the digital signature, and executes 214.
Specifically, the endorsement node executes an environment data association intelligent contract, associates the hash value of the environment data recorded in the block chain through the time mark and the position mark according to the environment data catalogues of other acquisition nodes and the requirements of a local monitoring alarm intelligent contract, and carries out digital signature by the hash value.
Step 210: the endorsement node executes an intelligent contract for monitoring and alarming, generates alarm information when determining that the environmental data of the acquisition node needs alarming, carries out digital signature on the alarm information by using a digital certificate, and sends the digitally signed alarm information to the supervision node.
Specifically, the endorsement node executes a monitoring alarm intelligent contract, generates alarm information (for example, an alarm data report) according to the comparison of local environment data and preset conditions if an environment destruction condition occurs, simultaneously contains environment data of other associated acquisition nodes, carries out digital signature by the environment data and informs a supervision node of an area where the environment data is located.
Step 211: the monitoring node acquires a hash value of environment data corresponding to the alarm information from a block chain of the block chain network according to the alarm information, a node identifier corresponding to the hash value of the environment data corresponding to the alarm information, hash values of environment data of other acquisition nodes associated with the hash value of the environment data corresponding to the alarm information, and node identifiers corresponding to the hash values of the environment data of other acquisition nodes associated with the hash value of the environment data corresponding to the alarm information.
Step 212: and the supervision node acquires the environmental data corresponding to the hash value from the acquisition node corresponding to the node identification according to the acquired node identification and the hash value, and takes at least one acquired environmental data as at least one target environmental data.
Specifically, the monitoring node acquires alarm information (for example, the endorsement node stores the alarm information in a block chain, and the monitoring node acquires the alarm information from the block chain), verifies the validity of the digital signature, and applies for original environment data to the acquisition node where the data is located according to the associated environment data identifier.
The collection node provides raw environmental data over a secure channel.
Step 213: for each piece of target environment data, performing: and the supervision node calculates the hash value of the current target environment data, judges whether the calculated hash value of the current target environment data is the same as the hash value of the current target environment data stored in the block chain of the block chain network, if so, determines that the current target environment data is legal, otherwise, determines that the current target environment data is illegal.
Specifically, the supervising node can verify the hash value and the digital signature of the original environment data through the blockchain, and confirm the validity of the original environment data.
Specifically, the supervision node proposes judicial litigation according to actual conditions and participates in supervision and other work. The supervision node may use the acquired environmental data as evidence.
Step 214: when the accounting node receives the execution result sent by the current endorsement node, after the execution result is agreed, generating a new block, and storing the execution result into the new block; and the plurality of nodes update the local account book records according to the new blocks.
In addition, when the endorsement node determines that the execution of the intelligent contract is invalid, an error report is sent to the acquisition node. Each node may constitute a federation chain.
In the embodiment of the invention, all parties participating in environmental problem inspection and litigation are combined, a alliance chain is established based on a P2P consensus network, multiple devices of the collection nodes are effectively utilized to obtain evidence of data, and the environment-related data is subjected to digital abstract and recorded in a block chain; meanwhile, the acquisition node triggers an alarm through a data analysis intelligent contract and feeds the alarm back to the supervision node. The validity of the retained evidence can be guaranteed through the block chain, the evidence is issued by all parties of the collection nodes, the supervision nodes realize effective law supervision and litigation evidence demonstration, the instantaneity of law enforcement and litigation is improved, the cooperation among all departments of the environmental protection work is realized, and the urban environment construction work is effectively supervised and promoted together.
In the embodiment of the invention, a blockchain alliance chain is established in a P2P consensus network, each environment protection participant is added into the blockchain consensus network, the blockchain consensus network comprises mechanisms such as a check authority, an environmental protection department, a water conservancy department, a public security department and the like, the environment data acquisition service is realized through a sensor network deployed by the environment data acquisition service, environment data are acquired from a terminal, and the acquisition node of the environment data acquisition service issues an intelligent contract. All the acquisition nodes maintain an account book together, and the account book records intelligent contracts; the consensus network comprises an access node, an endorsement node, a billing node and a third-party digital certificate authentication center, all the nodes cooperate together to achieve consensus, and execution of an intelligent contract and generation of a new block of a block chain are completed. In addition, the supervision node verifies the validity of the evidence through the block chain, and the data collection party provides the relevant evidence for judicial lawsuits.
In the embodiment of the invention, the P2P consensus network is a point-to-point network, and has no central node, and performs message exchange point to point; the collection node of the environmental data provides an environmental data storage service, receives environmental information from the intelligent equipment of the sensing network, provides original data for a case of lifting a complaint, issues an intelligent contract and records the contract into a block chain; the supervision node is responsible for providing evidence validity identification and realizing the authentication of supervision and proof materials; the third-party digital certificate authentication center is responsible for issuing digital certificates for the participating nodes, realizing the safe communication between the nodes, and issuing digital certificates for intelligent equipment for acquiring environmental data to ensure the credibility of the data; the access node is generally a check authority node and is responsible for the access of the node; the endorsement node is selected from the nodes of the block chain P2P consensus network and is responsible for executing and confirming the intelligent contract; the accounting nodes reach consensus, new blocks are generated and broadcast to the whole P2P consensus network, and then each node completes confirmation and updates the local account book.
In the embodiment of the invention, a block chain technology and an internet of things technology are combined, a alliance chain is established based on a P2P consensus network, and various devices such as a bayonet camera of a public security department, environment detection equipment of an environmental protection department, audio image acquisition equipment of a law enforcement department and the like are effectively utilized for data forensics; by utilizing the characteristic of decentralized trust of the block chain distributed account book technology, the intelligent contract is formed in the process of judicial evidence-raising litigation supervision, all the participating departments are combined, the cooperation among all the departments in the environmental protection work is enhanced, the instantaneity of law enforcement litigation is improved, and the urban environment construction work is effectively supervised and promoted together. The control of node addition is realized through the access node, the computation speed of contract execution is accelerated by adding the endorsement node, and the execution efficiency of block chain consensus is improved by adopting a mode of a union chain; the hash value and the signature value of the environmental data are stored in the block chain, so that the data integrity and the authenticity of the environmental data are guaranteed, and meanwhile, the data privacy of the department where the environmental data are located is also guaranteed.
In the embodiment of the present invention, the Block (Block) structure of the blockchain includes a version number, a timestamp, a transaction Merkle root digest, an execution state, a previous Block digest value, and a present Block digest value (identifier), and the data recorded in the blockchain is an intelligent contract.
In the embodiment of the invention, SM3 cryptographic algorithm is used as a digest algorithm, SM3SM2 cryptographic algorithm is used as a signature algorithm, SM2 cryptographic algorithm is used as an asymmetric encryption algorithm, SM4 cryptographic algorithm is used as a symmetric encryption algorithm, and the digital certificate adopts an X509 format. In addition, the digital envelope uses the national seal Q7 standard.
As shown in fig. 3, an embodiment of the present invention provides an environmental surveillance system based on a block chain, including:
a plurality of nodes;
the plurality of nodes form a block chain network, and the plurality of nodes comprise: at least one collection node 301 and at least one supervisory node 302;
each acquisition node is used for acquiring environmental data and locally storing the environmental data;
the plurality of nodes are used for issuing the hash value of the environment data acquired by each acquisition node to a block chain of the block chain network, determining whether the environment data of each acquisition node needs to be alarmed, and if so, sending alarm information to the supervision node;
the monitoring node is used for acquiring at least one piece of target environment data from at least one acquisition node storing at least one piece of target environment data needing alarming according to the alarming information when the alarming information is received, acquiring a hash value of each piece of target environment data from a block chain of the block chain network, and verifying whether each piece of target environment data is legal or not by using the hash value of each piece of target environment data.
In fig. 3, 3 collection nodes 301 and one supervision node 302 are shown.
In an embodiment of the present invention, the plurality of nodes are further configured to determine an endorsement node and an accounting node of the blockchain network from the plurality of nodes;
the plurality of nodes are configured to, for each of the collection nodes, perform:
adding a time mark and a position mark for the current acquired environmental data by the current acquisition node, determining a hash value of the current environmental data, and generating an environmental data intelligent contract; the current acquisition node associates the current share of environmental data of the current acquisition node with the environmental data of other nodes according to the time marks and the position marks of the environmental data acquired by other acquisition nodes and the time marks and the position marks of the current share of environmental data to generate an environmental data association intelligent contract; the current acquisition node generates a monitoring alarm intelligent contract; the current acquisition node issues the intelligent contract of the environmental data, the intelligent contract of the environmental data association and the intelligent contract of the monitoring alarm to the block chain network;
for each endorsement node, performing:
the current endorsement node executes the environment data intelligent contract, calculates the hash value of the current endorsement environment data of the current acquisition node, corresponds the node identification of the current acquisition node with the hash value of the current endorsement environment data of the current acquisition node, determines whether the execution of the environment data intelligent contract is effective or not according to an endorsement strategy, and sends the execution result of the environment data intelligent contract to the accounting node if the execution result is effective;
the current endorsement node executes the environment data association intelligent contract, when the current endorsement node determines that the current environmental data of the current acquisition node needs to be alarmed according to the monitoring alarm intelligent contract, the hash value of the current environmental data of the current acquisition node is associated with the hash values of the environmental data of other acquisition nodes according to the time mark and the position mark of the environmental data of each acquisition node in the block chain, the current endorsement node determines whether the execution of the environment data association intelligent contract is effective or not according to an endorsement strategy, and if so, the execution result of the environment data association intelligent contract is sent to the accounting node;
the current endorsement node executes the monitoring alarm intelligent contract, and when the current environmental data of the current collection node is determined to need to be alarmed, the alarm information is sent to the supervision node;
when the accounting node receives an execution result sent by the current endorsement node, after the execution result is agreed, generating a new block, and storing the execution result into the new block;
the plurality of nodes update local account book records according to the new blocks;
wherein the execution result comprises: the execution result of the environment data intelligent contract and the execution result of the environment data related intelligent contract; the execution result of the environment data intelligent contract comprises: the hash value of the current environmental data of the current collection node and the corresponding node identification of the current collection node; the environment data association intelligent contract execution result comprises: and the hash value of the current environmental data of the current collection node and the hash values of the environmental data of other associated collection nodes.
In an embodiment of the present invention, the monitoring node is configured to, when receiving the alarm information, execute:
according to the alarm information, obtaining the hash value of the current environmental data from the block chain of the block chain network, the node identification corresponding to the hash value of the current environmental data, the hash values of the environmental data of other acquisition nodes related to the hash value of the current environmental data, and the node identification corresponding to the hash values of the environmental data of other acquisition nodes related to the hash value of the current environmental data;
according to the acquired node identification and the hash value, acquiring environmental data corresponding to the hash value from an acquisition node corresponding to the node identification, and taking at least one acquired environmental data as at least one target environmental data;
for each piece of the target environment data, performing: calculating the hash value of the current target environment data, judging whether the calculated hash value of the current target environment data is the same as the hash value of the current target environment data stored in a block chain of the block chain network, if so, determining that the current target environment data is legal, otherwise, determining that the current target environment data is illegal.
In an embodiment of the present invention, the multiple nodes are further configured to, before the current collection node adds a time stamp and a location stamp to the collected current environmental data and determines a hash value of the current environmental data, execute:
for each of the collection nodes, performing:
the current acquisition node generates a data cataloging intelligent contract;
the current acquisition node standardizes the current share environment data according to the data cataloging intelligent contract;
the plurality of nodes is further configured to, for each of the collection nodes, perform:
the current acquisition node issues the data cataloging intelligent contract to the block chain network;
the plurality of nodes is further configured to, for each endorsement node, perform:
the current endorsement node executes the intelligent contract of the data catalogs to generate an environmental data catalogs of the current acquisition node, the current endorsement node determines whether the execution of the intelligent contract of the data catalogs is effective according to an endorsement strategy, and if so, the execution result of the intelligent contract of the data catalogs is sent to the accounting node;
the plurality of nodes, when executing the time stamp and the position stamp according to the environment data of each collection node in the block chain, and associating the hash value of the current environment data of the current collection node with the hash values of the environment data of other collection nodes, are specifically configured to:
the current endorsement node acquires the environment data catalogues of other acquisition nodes from the block chain of the block chain network, and associates the hash value of the current environmental data of the current acquisition node with the hash values of the environment data of other acquisition nodes according to the acquired environment data catalogues of other acquisition nodes and the time mark and the position mark of the environment data of each acquisition node;
wherein the execution result further comprises: the execution result of the data cataloging intelligent contract; the execution result of the data cataloging intelligent contract comprises: and cataloging the environmental data of the current collection node.
In an embodiment of the invention, the system further comprises: a third party digital certificate authentication center;
the third-party digital certificate authentication center is used for issuing a digital certificate for each node;
each node is used for carrying out digital signature by using a digital certificate issued by the third-party digital certificate authentication center during data transmission and transmitting the data subjected to digital signature.
In an embodiment of the present invention, the plurality of nodes are further configured to determine an admission node of the block chain network from the plurality of nodes; when a new node that is not in the blockchain network requests to join the blockchain network, the admission node determines whether to allow the new node to join the blockchain network.
Because the information interaction, execution process, and other contents between the units in the device are based on the same concept as the method embodiment of the present invention, specific contents may refer to the description in the method embodiment of the present invention, and are not described herein again.
The embodiments of the invention have at least the following beneficial effects:
1. in the embodiment of the invention, at least one acquisition node and at least one supervision node are constructed into a block chain network, the acquisition node acquires environmental data, when environmental problems are found according to the acquired environmental data and alarm is needed, alarm information is sent to the supervision node, the supervision node can directly acquire the needed environmental data from each node storing the environmental data needing alarm according to the alarm information, and the needed environmental data can be collected more conveniently.
2. In the embodiment of the invention, all parties participating in environmental problem inspection and litigation are combined, a alliance chain is established based on a P2P consensus network, multiple devices of the collection nodes are effectively utilized to obtain evidence of data, and the environment-related data is subjected to digital abstract and recorded in a block chain; meanwhile, the acquisition node triggers an alarm through a data analysis intelligent contract and feeds the alarm back to the supervision node. The validity of the retained evidence can be guaranteed through the block chain, the evidence is issued by all parties of the collection nodes, the supervision nodes realize effective law supervision and litigation evidence demonstration, the instantaneity of law enforcement and litigation is improved, the cooperation among all departments of the environmental protection work is realized, and the urban environment construction work is effectively supervised and promoted together.
3. In the embodiment of the invention, a block chain technology and an internet of things technology are combined, a alliance chain is established based on a P2P consensus network, and various devices such as a bayonet camera of a public security department, environment detection equipment of an environmental protection department, audio image acquisition equipment of a law enforcement department and the like are effectively utilized for data forensics; by utilizing the characteristic of decentralized trust of the block chain distributed account book technology, the intelligent contract is formed in the process of judicial evidence-raising litigation supervision, all the participating departments are combined, the cooperation among all the departments in the environmental protection work is enhanced, the instantaneity of law enforcement litigation is improved, and the urban environment construction work is effectively supervised and promoted together. The control of node addition is realized through the access node, the computation speed of contract execution is accelerated by adding the endorsement node, and the execution efficiency of block chain consensus is improved by adopting a mode of a union chain; the hash value and the signature value of the environmental data are stored in the block chain, so that the data integrity and the authenticity of the environmental data are guaranteed, and meanwhile, the data privacy of the department where the environmental data are located is also guaranteed.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other similar elements in a process, method, article, or apparatus that comprises the element.
Those of ordinary skill in the art will understand that: all or part of the steps for realizing the method embodiments can be completed by hardware related to program instructions, the program can be stored in a computer readable storage medium, and the program executes the steps comprising the method embodiments when executed; and the aforementioned storage medium includes: various media that can store program codes, such as ROM, RAM, magnetic or optical disks.
Finally, it is to be noted that: the above description is only a preferred embodiment of the present invention, and is only used to illustrate the technical solutions of the present invention, and not to limit the protection scope of the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention shall fall within the protection scope of the present invention.

Claims (8)

1. An environmental supervision method based on a block chain is characterized by comprising the following steps:
s1: forming a block chain network by a plurality of nodes, wherein the plurality of nodes comprise: at least one collection node and at least one supervision node;
s2: each acquisition node acquires environmental data and locally stores the environmental data;
s3: issuing the hash value of the environmental data acquired by each acquisition node to a block chain of the block chain network, determining whether the environmental data of each acquisition node needs to be alarmed, and if so, sending alarm information to the supervision node;
s4: the supervision node receiving the alarm information acquires at least one piece of target environment data from at least one acquisition node storing at least one piece of target environment data needing alarming according to the alarm information, acquires a hash value of each piece of target environment data from a block chain of the block chain network, and verifies whether each piece of target environment data is legal or not by using the hash value of each piece of target environment data;
further comprising: determining an endorsement node and an accounting node of the block chain network from the plurality of nodes;
the S3, including:
for each of the collection nodes, performing:
adding a time mark and a position mark for the current acquired environmental data by the current acquisition node, determining a hash value of the current environmental data, and generating an environmental data intelligent contract; the current acquisition node associates the current share of environmental data of the current acquisition node with the environmental data of other nodes according to the time marks and the position marks of the environmental data acquired by other acquisition nodes and the time marks and the position marks of the current share of environmental data to generate an environmental data association intelligent contract; the current acquisition node generates a monitoring alarm intelligent contract; the current acquisition node issues the intelligent contract of the environmental data, the intelligent contract of the environmental data association and the intelligent contract of the monitoring alarm to the block chain network;
for each endorsement node, performing:
the current endorsement node executes the environment data intelligent contract, calculates the hash value of the current endorsement environment data of the current acquisition node, corresponds the node identification of the current acquisition node with the hash value of the current endorsement environment data of the current acquisition node, determines whether the execution of the environment data intelligent contract is effective or not according to an endorsement strategy, and sends the execution result of the environment data intelligent contract to the accounting node if the execution result is effective;
the current endorsement node executes the environment data association intelligent contract, when the current endorsement node determines that the current environmental data of the current acquisition node needs to be alarmed according to the monitoring alarm intelligent contract, the hash value of the current environmental data of the current acquisition node is associated with the hash values of the environmental data of other acquisition nodes according to the time mark and the position mark of the environmental data of each acquisition node in the block chain, the current endorsement node determines whether the execution of the environment data association intelligent contract is effective or not according to an endorsement strategy, and if so, the execution result of the environment data association intelligent contract is sent to the accounting node;
the current endorsement node executes the monitoring alarm intelligent contract, and when the current environmental data of the current collection node is determined to need to be alarmed, the alarm information is sent to the supervision node;
when the accounting node receives an execution result sent by the current endorsement node, after the execution result is agreed, generating a new block, and storing the execution result into the new block;
the plurality of nodes update local account book records according to the new blocks;
wherein the execution result comprises: the execution result of the environment data intelligent contract and the execution result of the environment data related intelligent contract; the execution result of the environment data intelligent contract comprises: the hash value of the current environmental data of the current collection node and the corresponding node identification of the current collection node; the environment data association intelligent contract execution result comprises: and the hash value of the current environmental data of the current collection node and the hash values of the environmental data of other associated collection nodes.
2. The method of claim 1,
the S4, including:
the supervision node receiving the alarm information acquires the hash value of the current piece of environmental data from the block chain of the block chain network according to the alarm information, the node identification corresponding to the hash value of the current piece of environmental data, the hash values of the environmental data of other acquisition nodes associated with the hash value of the current piece of environmental data, and the node identifications corresponding to the hash values of the environmental data of other acquisition nodes associated with the hash value of the current piece of environmental data;
the supervision node receiving the alarm information acquires environmental data corresponding to the hash value from the acquisition node corresponding to the node identification according to the acquired node identification and the hash value, and takes at least one acquired environmental data as at least one target environmental data;
for each piece of the target environment data, performing: and the supervision node receiving the alarm information calculates the hash value of the current target environment data, judges whether the calculated hash value of the current target environment data is the same as the hash value of the current target environment data stored in the block chain of the block chain network, if so, determines that the current target environment data is legal, otherwise, determines that the current target environment data is illegal.
3. The method of claim 2,
before the current collection node adds a time stamp and a position stamp to the collected current environmental data and determines the hash value of the current environmental data, the method further includes:
for each of the collection nodes, performing:
the current acquisition node generates a data cataloging intelligent contract;
the current acquisition node standardizes the current share environment data according to the data cataloging intelligent contract;
further comprising:
for each of the collection nodes, performing:
the current acquisition node issues the data cataloging intelligent contract to the block chain network;
further comprising:
for each endorsement node, performing:
the current endorsement node executes the intelligent contract of the data catalogs to generate an environmental data catalogs of the current acquisition node, the current endorsement node determines whether the execution of the intelligent contract of the data catalogs is effective according to an endorsement strategy, and if so, the execution result of the intelligent contract of the data catalogs is sent to the accounting node;
the associating the hash value of the current environmental data of the current collection node with the hash values of the environmental data of other collection nodes according to the time mark and the position mark of the environmental data of each collection node in the block chain comprises:
the current endorsement node acquires the environment data catalogues of other acquisition nodes from the block chain of the block chain network, and associates the hash value of the current environmental data of the current acquisition node with the hash values of the environment data of other acquisition nodes according to the acquired environment data catalogues of other acquisition nodes and the time mark and the position mark of the environment data of each acquisition node;
wherein the execution result further comprises: the execution result of the data cataloging intelligent contract; the execution result of the data cataloging intelligent contract comprises: and cataloging the environmental data of the current collection node.
4. The method according to any one of claims 2 to 3,
further comprising:
the third-party digital certificate authentication center issues a digital certificate for each node;
when each node transmits data, the digital certificate issued by the third-party digital certificate authentication center is used for carrying out digital signature, and the data subjected to digital signature is transmitted;
and/or the presence of a gas in the gas,
further comprising:
determining an admission node of the blockchain network from the plurality of nodes;
when a new node that is not in the blockchain network requests to join the blockchain network, the admission node determines whether to allow the new node to join the blockchain network.
5. An environmental surveillance system based on blockchains, comprising:
a plurality of nodes;
the plurality of nodes form a block chain network, and the plurality of nodes comprise: at least one collection node and at least one supervision node;
each acquisition node is used for acquiring environmental data and locally storing the environmental data;
the plurality of nodes are used for issuing the hash value of the environment data acquired by each acquisition node to a block chain of the block chain network, determining whether the environment data of each acquisition node needs to be alarmed, and if so, sending alarm information to the supervision node;
the monitoring node is used for acquiring at least one piece of target environment data from at least one acquisition node storing at least one piece of target environment data needing alarming according to the alarming information when the alarming information is received, acquiring a hash value of each piece of target environment data from a block chain of the block chain network, and verifying whether each piece of target environment data is legal or not by using the hash value of each piece of target environment data;
the plurality of nodes are further used for determining an endorsement node and an accounting node of the block chain network from the plurality of nodes;
the plurality of nodes are configured to, for each of the collection nodes, perform:
adding a time mark and a position mark for the current acquired environmental data by the current acquisition node, determining a hash value of the current environmental data, and generating an environmental data intelligent contract; the current acquisition node associates the current share of environmental data of the current acquisition node with the environmental data of other nodes according to the time marks and the position marks of the environmental data acquired by other acquisition nodes and the time marks and the position marks of the current share of environmental data to generate an environmental data association intelligent contract; the current acquisition node generates a monitoring alarm intelligent contract; the current acquisition node issues the intelligent contract of the environmental data, the intelligent contract of the environmental data association and the intelligent contract of the monitoring alarm to the block chain network;
for each endorsement node, performing:
the current endorsement node executes the environment data intelligent contract, calculates the hash value of the current endorsement environment data of the current acquisition node, corresponds the node identification of the current acquisition node with the hash value of the current endorsement environment data of the current acquisition node, determines whether the execution of the environment data intelligent contract is effective or not according to an endorsement strategy, and sends the execution result of the environment data intelligent contract to the accounting node if the execution result is effective;
the current endorsement node executes the environment data association intelligent contract, when the current endorsement node determines that the current environmental data of the current acquisition node needs to be alarmed according to the monitoring alarm intelligent contract, the hash value of the current environmental data of the current acquisition node is associated with the hash values of the environmental data of other acquisition nodes according to the time mark and the position mark of the environmental data of each acquisition node in the block chain, the current endorsement node determines whether the execution of the environment data association intelligent contract is effective or not according to an endorsement strategy, and if so, the execution result of the environment data association intelligent contract is sent to the accounting node;
the current endorsement node executes the monitoring alarm intelligent contract, and when the current environmental data of the current collection node is determined to need to be alarmed, the alarm information is sent to the supervision node;
when the accounting node receives an execution result sent by the current endorsement node, after the execution result is agreed, generating a new block, and storing the execution result into the new block;
the plurality of nodes update local account book records according to the new blocks;
wherein the execution result comprises: the execution result of the environment data intelligent contract and the execution result of the environment data related intelligent contract; the execution result of the environment data intelligent contract comprises: the hash value of the current environmental data of the current collection node and the corresponding node identification of the current collection node; the environment data association intelligent contract execution result comprises: and the hash value of the current environmental data of the current collection node and the hash values of the environmental data of other associated collection nodes.
6. The system of claim 5,
the supervision node is used for executing the following steps when the alarm information is received:
according to the alarm information, obtaining the hash value of the current environmental data from the block chain of the block chain network, the node identification corresponding to the hash value of the current environmental data, the hash values of the environmental data of other acquisition nodes related to the hash value of the current environmental data, and the node identification corresponding to the hash values of the environmental data of other acquisition nodes related to the hash value of the current environmental data;
according to the acquired node identification and the hash value, acquiring environmental data corresponding to the hash value from an acquisition node corresponding to the node identification, and taking at least one acquired environmental data as at least one target environmental data;
for each piece of the target environment data, performing: calculating the hash value of the current target environment data, judging whether the calculated hash value of the current target environment data is the same as the hash value of the current target environment data stored in a block chain of the block chain network, if so, determining that the current target environment data is legal, otherwise, determining that the current target environment data is illegal.
7. The system of claim 6,
the multiple nodes are further configured to execute, before the current collection node adds a time stamp and a position stamp to the collected current environmental data and determines a hash value of the current environmental data:
for each of the collection nodes, performing:
the current acquisition node generates a data cataloging intelligent contract;
the current acquisition node standardizes the current share environment data according to the data cataloging intelligent contract;
the plurality of nodes is further configured to, for each of the collection nodes, perform:
the current acquisition node issues the data cataloging intelligent contract to the block chain network;
the plurality of nodes is further configured to, for each endorsement node, perform:
the current endorsement node executes the intelligent contract of the data catalogs to generate an environmental data catalogs of the current acquisition node, the current endorsement node determines whether the execution of the intelligent contract of the data catalogs is effective according to an endorsement strategy, and if so, the execution result of the intelligent contract of the data catalogs is sent to the accounting node;
the plurality of nodes, when executing the time stamp and the position stamp according to the environment data of each collection node in the block chain, and associating the hash value of the current environment data of the current collection node with the hash values of the environment data of other collection nodes, are specifically configured to:
the current endorsement node acquires the environment data catalogues of other acquisition nodes from the block chain of the block chain network, and associates the hash value of the current environmental data of the current acquisition node with the hash values of the environment data of other acquisition nodes according to the acquired environment data catalogues of other acquisition nodes and the time mark and the position mark of the environment data of each acquisition node;
wherein the execution result further comprises: the execution result of the data cataloging intelligent contract; the execution result of the data cataloging intelligent contract comprises: and cataloging the environmental data of the current collection node.
8. The system according to any one of claims 6 to 7,
further comprising: a third party digital certificate authentication center;
the third-party digital certificate authentication center is used for issuing a digital certificate for each node;
each node is used for carrying out digital signature by using a digital certificate issued by the third-party digital certificate authentication center during data transmission and transmitting data subjected to digital signature;
and/or the presence of a gas in the gas,
the plurality of nodes are further used for determining an admission node of the block chain network from the plurality of nodes; when a new node that is not in the blockchain network requests to join the blockchain network, the admission node determines whether to allow the new node to join the blockchain network.
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